The abstract is read at the publisher; the summary is JClub's.
Tyrosine availability from nasal synthetic communities supports proliferation of an auxotrophic Staphylococcus aureus strain, and tyrosine dependency occurs in 8% of strains.
- Why it matters: Only some people carry S. aureus in the nose, but how resident nasal microbes and nutrient context shape colonization is not well understood.
- What they did: Using a curated nasal strain collection and systematic pairwise interaction testing, the study measured nutrient-dependent growth effects in vitro and in gnotobiotic mice, including tyrosine supplementation and strain screening.
- The result: Tyrosine dependency in 8% of S. aureus strains is linked to impaired colonization when supportive communities are absent, suggesting metabolic adaptation to specific nasal community features.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.